The meaning of the Idiom 'Make a clean breast of' is to:
Show answer & explanation
Correct answer: C
Explanation
The idiom "make a clean breast of" means to tell the full truth about something; especially a mistake, secret, or wrongdoing that has been weighing on one's conscience.
Definition: To admit or confess something fully and honestly.
Usage: It is often used when someone decides to stop hiding a secret to relieve their guilt.